11-MD142 Version Issue Date File Name Total Page : A.003 : 2005/11/7 : SP-MD142-A.003.doc : 11 Multi-Channels Motor Driver For DSC 新竹市展業一路 9 號 7 樓之 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Rd I, Science-Based Industrial Park Hsinchu, Taiwan, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. 11-MD142 Motor Driver For DSC General Specifications The 11-MD142 is a 4-channels motor driver for Digital Still Camera. It contains constant current control for M-shutter and saturation voltage control channels for AF stepping motor and Iris. It is optimal for DSC Lens module in M-shutter, Iris and Auto Focus motor. Features and Benefits Low voltage operation Low saturation voltage Low input current Easy constant current control Ultra low standby current Reference Voltage inside (Vref=1.23V) Thermal shutdown protection Thin, highly reliable package :QFN-32(4.75mm X 4.75mm) and TSSOP-20 z z z z z z z z Pin Assignment VDD NC NC NC OUT1 NC GND IM Pin Assignment of QFN-32 32 31 30 29 28 27 26 25 Pin Assignment of TSSOP-20 NC EN1 2 23 GND EN2 3 22 OUT2 IAD 4 21 OUT3 IN1 5 20 OUT4 IN2 6 19 OUT5 IN3 7 18 OUT6 IN4 8 17 NC 13 14 SP-MD142-A.003 15 16 NC 12 NC 11 NC 10 NC NC 9 GND 24 VREF 1 VB PIM VDD OUT1 PIM GND EN1 IM EN2 OUT2 IAD OUT3 IN1 OUT4 IN2 OUT5 IN3 OUT6 IN4 GND VB VREF Version：A.003 Page：1 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Pin Descriptions of QFN-32 Pin NO. Pin Name Description Pin NO. Pin Name Description 1 PIM Current sense resistor 17 NC 2 EN1 Mode Selected Input pin 18 OUT6 Motor output pin 3 EN2 Mode Selected Input pin 19 OUT5 Motor output pin 4 IAD AMP positive input pin 20 OUT4 Motor output pin 5 IN1 Motor control input pin 21 OUT3 Motor output pin 6 IN2 Motor control input pin 22 OUT2 Motor output pin 7 IN3 Motor control input pin 23 GND Controller and driver ground 8 IN4 Motor control input pin 24 NC 9 NC 25 IM 10 NC 26 GND Controller and driver ground 11 NC 27 12 VB Motor output pin 13 Power supply pin for motor driver 28 OUT1 VREF Reference voltage output pin 29 NC 14 GND Motor driver ground 30 NC 15 NC 31 NC 16 NC 32 VDD Current sense resistor Power supply pin for controller. Pin Descriptions of TSSOP-20 Pin NO. Pin Name Description Pin NO. Pin Name Description 1 VDD Power supply pin for controller. 11 VREF Reference voltage output pin 2 PIM Current sense resistor 12 GND Motor driver ground 3 EN1 Mode selected Input pin 13 OUT6 Motor output pin 4 EN2 Mode selected Input pin 14 OUT5 Motor output pin 5 IAD AMP positive input pin 15 OUT4 Motor output pin 6 IN1 Motor control input pin 16 OUT3 Motor output pin 7 IN2 Motor control input pin 17 OUT2 Motor output pin 8 IN3 Motor control input pin 18 IM 9 IN4 Motor control input pin 19 GND Controller and driver ground 10 VB Power supply pin for motor driver 20 OUT1 Motor output pin SP-MD142-A.003 Version：A.003 Current sense resistor Page：2 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Absolute Maximum Ratings ( Unless otherwise noted, TA= 25℃ ) Characteristic Symbol Rating Unit VDD 5.5 V VB 5.5 V VIN VDD+0.4 V IO Peak Current IOPeak 1.5 A IODC Current IODC 550 mA Power Dissipation PD 800 mW Operating Temperature Range TOPR -40 ~ 125 °C Storage Temperature Range TSTG -65 ~ 150 °C Supply Voltage Input Voltage Electrical Characteristic (Unless otherwise noted, TA= 25℃ , Ra + Rb = 10 kΩ & VDD = VB = 3V ) Characteristic Supply Voltage Sym. Limit Condition Unit Min. Typ. Max. VDD 2.2 3 5.5 V VB - 3 5.5 V ISTB VEN1~ EN2 =L; VIN1~ IN4 =L - 0.1 1 μA Supply Current IDD1 VEN1~ EN2 = LH - 0.8 1.5 mA ( IDD ) IDD2 VEN1~ EN2 = HL - 0.6 1.0 mA IDD3 VEN1~ EN2 = HH - 0.6 1.0 mA Vref VDD = 3V ; Iref = -1mA 1.19 1.23 1.27 V Reference Voltage Circuit Reference Voltage EN1~2 / IN1~4 Input Terminal ( TJ = 25℃) Input Voltage “H” VIH - 0.8*VDD - VDD+0.4 V Input Voltage “L” VIL - -0.4 - 0.2*VDD V Input Current “H” IIH VIN = VDD - - ±5 μA Input Current “L” IIL VIN = 0 V - - ±5 μA IOUT = 200 mA - 0.25 0.4 V IOUT = 200 mA - 0.25 0.4 V AF Output Terminal (OUT2-3，OUT5-6) Saturation Voltage (upper + lower) VSAT1 AE Output Terminal (OUT4-5) Saturation Voltage (upper + lower) VSAT2 SP-MD142-A.003 Version：A.003 Page：3 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. SH Output Terminal (OUT1-2) Output Current1 IO1 Output Current1 Saturation Voltage (upper + lower) IO2 VSAT3 O2-> O1, RIM = 1Ω 255 270 285 mA 220 248 275 mA IOUT = 200 mA - 0.25 0.4 V VEN1 or VEN2=H - 160 - ℃ VIAD=0.3V O1-> O2, RPIM = 0.9Ω VIAD=0.3V Thermal Protection Circuit Protection Temperature TTSD Truth Table EN1 L EN2 L L H H H L H INPUT IN1 IN2 IN3 IN4 — — — — L L L H H L H H L L L H H L H H L L L H H L H H L L L H H L H H L L L H H L H H L L L H H L H H Note: “*”: Don’t care; O1 — — L H — O2 — — H L — — — — — — — — — — — — — — — — — — — — — — L H — OUPUT O3 O4 — — — — — — — — — L — H — — — L H — — L H — — — — H — L — — — — — — O5 — — H L — — H L — — L H — “—“: High Impedance SP-MD142-A.003 Version：A.003 Page：4 O6 — — — — — — — — — — — — — — — — — — H L — MODE STB SH AE (VCM) AF (STM) 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Application Circuit z z z AF: Saturation drive for 2 phase, 1-2 phase stepping motor M-shutter: Constant current drive for shutter voice coil motor Aperture: Saturation drive for aperture voice coil motor VDD 11-MD142 10μ VDD OUT1 PIM GND EN1 EN1 IM EN2 EN2 OUT2 RPIM VB 10μ Cc M-shutter RIM Cn Cn IAD OUT3 IN1 IN1 OUT4 IN2 IN2 OUT5 IN3 IN3 OUT6 IN4 IN4 GND VB VREF AF Aperture Cn 10μ Ra Rb SP-MD142-A.003 Version：A.003 Page：5 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Function Block (TSSOP-20 Pin Assignment) CPU GND 19 EN1 IN1 4 VDD 1 EN2 3 VDD IN2 6 VDD IN3 7 VDD IN4 8 VDD 9 VDD VDD 10uF BIAS VREF 11 Ra 5 Logic THD IAD Rb VB 10 10uF RPIM 2 PIM IM 18 OUT1 20 12 OUT2 17 OUT3 16 OUT4 15 OUT5 14 OUT6 13 RIM Shutter Aperture Constant Current Drive SP-MD142-A.003 AF Saturation Voltage Drive Version：A.003 Page：6 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Application Notes z The 11-MD142 integrates saturation voltage and constant current of motor driver. The range of supply voltage of 11-MD142, VDD and VB, is from 2.2V to 5.5V. The 11-MD142 input range is defined that logic “H” is from 0.8*VDD to VDD+0.4V and logic “L” is from –0.4V to 0.2*VDD. EN1 and EN2 are mode selection pins; IN1, IN2, IN3 and IN4 are motor rotation selection pins. z Normally VB should provide enough current for output loading, thus large value of C is suggested for the terminal VB. Besides, 0.01uF~0.1uF of capacitors, Cn, are also suggested between each output channel and output channel to ground. z Constant current operation of 11-MD142 provides the current, which can be evaluated by the following formula (See the depiction of application circuit 1.): I PIM = VIAD ( RPIM + 0.3) (unit : A) I IM = V IAD ( R IM + 0.11) (unit : A) z Before switching the mode of actuator, make sure to pull low the motor rotation selection pins (IN1~IN4). Then, switch to next mode to drive the motor. z Considering of stability of function of constant current, compensation capacitor of Cc (0.1~1uF) is suggested to connect between pin OUT1 and IM. SP-MD142-A.003 Version：A.003 Page：7 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Package Specifications (QFN-32) TOP VIEW 32 BOTTON VIEW D 25 1 D2 25 24 32 1 24 e MD142 DDDDDDDD E E2 8 17 8 17 L 9 16 16 9 e A1 A3 b A Note: “DDDDDDDD” are the date code or lot number and may be changed. Dimensions in Millimeter SYMBOL MIN NOM A 0.70 0.75 0.80 A1 0 0.02 0.05 A3 b 0.18 0.20 REF 0.25 0.30 D D2 5.00 2.60 E E2 L e SP-MD142-A.003 2.60 0.30 BSC 2.70 5.00 2.80 BSC 2.70 0.40 0.50 MAX 2.80 0. 50 BSC Version：A.003 Page：8 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. Package Specifications(TSSOP-20) MD142 DDDDDDDD Note: “DDDDDDDD” are the date code or lot number and may be changed. e 12˚(4X) b Dimensions in Millimeter SYMBOL MIN NOM MAX 1.20 A － － A1 0.05 － 0.15 A2 0.80 1 1.05 b 0.19 － 0.30 C 0.09 － 0.20 D 6.40 6.50 6.60 E 6.20 6.40 6.40 E1 e 4.30 4.50 － 4.40 0.65 L 0.45 0.60 0.75 y － － 0.10 θ 0° － 8° SP-MD142-A.003 Version：A.003 － Page：9 點晶科技股份有限公司 11-MD142 SILICON TOUCH TECHNOLOGY INC. The products listed herein are designed for ordinary electronic applications, such as electrical appliances, audio-visual equipment, communications devices and so on. Hence, it is advisable that the devices should not be used in medical instruments, surgical implants, aerospace machinery, nuclear power control systems, disaster/crime-prevention equipment and the like. Misusing those products may directly or indirectly endanger human life, or cause injury and property loss. Silicon Touch Technology, Inc. will not take any responsibilities regarding the misusage of the products mentioned above. Anyone who purchases any products described herein with the above-mentioned intention or with such misused applications should accept full responsibility and indemnify. Silicon Touch Technology, Inc. and its distributors and all their officers and employees shall defend jointly and severally against any and all claims and litigation and all damages, cost and expenses associated with such intention and manipulation. SP-MD142-A.003 Version：A.003 Page：10